CVE-2025-6433
24.06.2025, 13:15
If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires "a secure transport established without errors". This vulnerability affects Firefox < 140 and Thunderbird < 140.Enginsight
Vendor | Product | Version |
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mozilla | firefox | 𝑥 < 140.0 |
𝑥
= Vulnerable software versions

Ubuntu Releases
Ubuntu Product | |||||||||||||
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firefox |
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thunderbird |
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mozjs38 |
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mozjs52 |
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mozjs68 |
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mozjs78 |
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mozjs91 |
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mozjs102 |
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mozjs115 |
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Common Weakness Enumeration